Head lamp



Oct. 22, 1940. c. BREER ET AL. 2,218,807

HEAD LAMP Filed May 15, 1939 INVENTORS,

('af/ 5712:); Pizlz'; J7 1:172.

A TTORNE Y5.

Patented Oct. 22, 1940 I UNITED STATES HEAD mm Carl Breer,Grosse PointePark, and Philip' J. Kent,

Birmingham, Mich assignors to Chrysler Corporation, Highland Park, Mich,a corporation of Delaware Application May 15,

1 Claim.

This invention relates to an improved lamp. More particularly, theinvention pertains to improvements in vehicle head lamps of the type'which have a substantially permanently sealed 5 and factory focusedlens, driving light bulb and reflector assembly.

One of the main objects of the invention is the provision in a vehiclelamp of this kind of a parking light bulb which is located externally ofvision of a window of this character which has 20 sealed engagement withthe reflector;

An illustrative embodiment of the invention is shown in the accompanyingdrawing in which the figure is a central vertical sectional view of avehicle head lamp embodying-the invention.

In the form of the invention illustrated in the drawing, the head lampincludes a sheet metal casing H! which is received in an opening ll ofthe forward portion of a vehicle structure to which the casing I isfixed, preferably by welding. Disposed in the casing ill is a shell l2having an upstanding bracket l3 at its upper extremity by which it isadjustably supported within the casing. The shell l2 has a beliedportion M which extends into a dome I5 formed on the rear extremity ofthe casing 10. The bell por'- tion [4 of the shell I2 is seatedfor'universal swivel type movement in the rounded junction portion l6between the main body part of the shell l2 and its dome IS. A coilspring I! attached at one end to the shell and at its other end to abracket l8 mounted on the casing Ill serves to yieldably urge the bellportion l4 of the shell l2 against its seat l6. Movement of the bell l4may be produced by turning an adjustment screw 19 having a neck portion20 journalledin an aperture of the bracket I 3 of the shell and a shankportion threaded in an aperture in a bracket 2| mounted on the casing.

The bell l4 has an open front side surrounded by an outwardly extendingradial flange 22 in which is received a unitaryassembly comprising alens 23, reflector 24 and driving light. bulb 25. The reflector 24 isprovided with a central aperture 26in which is received the base portion21 of the driving light bulb 25 and this part of the 1939, Serial No.273,732

driving light bulb is fixed permanently to the reflector 24 preferablyby a bead of solder 23 which forms a seal between the base portion ofthe bulb 26 and the reflector. The reflector is provided with anoutwardly extending radial flange 29 which registers with asubstantially flat end face 39' on the lens 23. A sealing gasket 3| isdisposed between the flange 29 of the reflector and the end face 39 ofthe lens and these parts of the assembly are flrmly held together insealed relationship by an annular rim 32 of channelshaped cross sectionwhich is preferably so mounted on the outer periphery of the assembly'as to firmly press the flange 2,9 of the reflector and the flat face 39of the lens against respectively opposite sidesof the sealing gasket 3|.

The lens, reflector and bulb assembly, above described, is detachablymounted in the front open end of the bell l4 by mounting ring 33 havingportions of channel-shaped cross section and having a forward bead 34which bears against the front edge of the rim 32. The mounting ring 33has inwardly extending radial flanges 35 on its inner extremity providedwith apertures in which set screws 36 are threaded; Although only oneflange 35 and set screw 36 is illustrated in the drawing, it should beunderstood that several of these elements are provided incircumferentially spaced relation about the mounting ring 33. Theunitary lens, reflector and light bulb assembly is spaced from theflange 22 of thebell l4 by a gasket 31 against which one side flangeoi-the channel-shaped rim ening the screws 36.

Provided in the reflector 24, at a location spaced from the bulb 25, isan opening 39 in which a window 39 is mounted. The window 39 comprises atransparent material such as a clear resinous compound and it is mountedin sealed engagement with the reflector. Provided in the inner wall ofthe casing I0 is an opening 40 for receiving a detachable socket 4|having a plurality of releasable clamping members 42 arranged thereon incircumferentially spaced relation. The socket 4i extends through anenlarged opening 43 in the shell l2 and is provided with a light bulb 44which serves to emit light rays through the window 39 which may beviewed through the lens 23.

The above described vehicle head light structure accommodates the use ofa permanently sealed and factory focused lens, reflector and drivingbulb assembly from which all dirt, dust and other foreign matter iseffectively excluded. The bulb is a permanent part of the assembly 32 isfirmly pressed by tight-f which may be conveniently removed and replacedwhen the bulb burns out.

ture.

Although but one specific embodiment of the invention is herein shownand described, it will be apparent that various changes in the size,shape and arrangement of parts may be made without departing from thespirit of the invention.

We claim:

A lamp including a casing, a unitary lens, reflector and light bulbassembly including a concaved sheet metal reflector having spacedopenings therein, a light bulb having a base portion seated in one ofsaid openings and substantially integrally bondedto the metal of saidreflector surrounding said opening in sealed relationship with respectthereto, said light bulb being factoryflxed in a predetermined focusedrefor urging said surface portions against opposite sides of saidsealing member and clamping said lens and reflector to said flange, aparking light bulb mounted on said casing and located between said shelland said reflector in registration with the other of said openings and atransparent window covering the latter opening and in sealed engagementwith said reflector for admitting light rays from said parking bulbvthrough said reflector and lensvto the interior thereof.

CARL BREER. PHILIP J. KENT.

